Chemical

Products

Diethyl Carbonate

Cas Number

105-58-8

Other Names

CARBONIC ETHER

ETHYL CARBONATE

The formula

C5H10O3

Introduction

Diethyl carbonate (sometimes abbreviated DEC) is a carbonate ester of carbonic acid and ethanol with the formula OC(OCH2CH3)2. At room temperature (25 °C) diethyl carbonate is a clear liquid with a low flash point. Diethyl carbonate is used as a solvent such as in erythromycin intramuscular injections. It can be used as a component of electrolytes in lithium batteries. It has been proposed as a fuel additive to support cleaner diesel fuel combustion because its high boiling point might reduce blended fuels' volatility, minimize vapor buildup in warm weather that can block fuel lines.

Physical and Chemical Properties
Molar mass 118.13 g/mol
Appearance Clear liquid
Density 0.975 g/cm3
Melting point −74.3[2] °C (−101.7 °F; 198.8 K)
Boiling point 126 to 128 °C (259 to 262 °F; 399 to 401 K)
Solubility in water Insoluble
Applications

Diethyl Carbonate is a solvent of both extraction and reaction used in many industries; pharmaceuticals; agrochemicals; hydrocarbon refinery; paint and coatings and fragrances; It is used as a methylation and carbonylation agent in organic synthesis. It can be used as fuel and lube additive.